WICHITA, Kan. (AP) — An autopsy on a 5-year-old Wichita boy whose decomposing body was found months after he was reporting missing couldn't determine how he died, leaving behind few answers for a community that had been gripped by his disappearance.

The autopsy report of Lucas Hernandez lists both the cause and manner of his death as undetermined, and another autopsy also released Wednesday found that the Kansas woman who led an investigator to his body subsequently killed herself, The Wichita Eagle reported.

Lucas was missing for more than three months when his father's girlfriend, Emily Glas...